Only small boats like kayaks can fit through the culverts. "We wanted to provide, you know, more recreation area for kayaks and each of these crossings will have five feet of water at normal tide ...

The 19 four-sided box culverts were slated for destruction. Instead, Oldcastle donated them for the reef. Typically, they would be broken, taken to a crushing operation and made back in the road base.

These two projects are the first of four on State 57 between Sturgeon Bay and Jacksonport, all to replace culverts under the highway, scheduled for the next 14 months at a total cost of $3.2 million.

WSDOT's project is replacing three 8-foot by 9-foot box culverts at Blackjack Creek with two 80-foot bridges. The bridges will combine the highway and ramps into a single structure in each ...